Regulator for chicken-incubators.



a. H. LEE. RBGULATQR FOR CHICKEN INGUBATORS.

APPLICATION FILED AUG. 15, 1911.

Patented Sept. 24, 1912.

0 Re 8 ml In M1 M V. O m I A ogye By 7 WITNESSES y enonen HOWARD LEE,or, OMAHA, NEBRASKA.

REGULATOR FOR cnicxnnqnouna'rons.

Specification of Letters Patent.

Patented Sept. 24, 1912.

Application filed August '15, 1911. Serial No. 344,134.

To all whom it may concern:

Be it known that I, GEORGE H. LEE, a citizen of the United States, and aresident of Omaha, in the county of Douglas and State of Nebraska, haveinvented a new and Improved'Regulator for Chicken-Incubators, of whichthe following is a .full, clear, and exact description.

Among the principal objects which the present invention has in view are:to provide means whereby the percentage of moisture is variedproportionate to the variation of heat within the incubating chamber; toprovide means for changing the. relative radius of alteration of dryheat and moisture in the said incubating chamber; and to provide amechanism for accomplishing the above objectsthe construction andarrangement whereof is simplified.

One embodiment of the present invention is disclosed in the structureillustrated in, the accompanying drawings, in which like characters ofreference denote corresponding parts in all the views, and in whichFigure 1 is a perspective view of a damper constructed and arranged inaccordance with the present invention, shown in conjunction. with aportion of an incubator and heating plant therefor; Fig. 2 is a detailview on an enlarged scale, looking from above at the rockers andportions of the lifting bars connected therewith; Fig. 3 is a verticallongitudinal section taken on the line 3-3 in Fig. 2; and Fig. 4 is avertical cross section taken on the line 4-4 in Fig. 2.

As shown in the accompanying drawings, the heater A is separated fromthe incubating chamber B, and bet\ cm the same is 111- troduced a flue Cwhich;enters the chamber above the egg tray D. The upper end of theheater A. is provided with an orifice E through which, when open, theheat escapes to the outer air instead of being delivered within theincubating chamberis normally closed by the hood 9. A similar hood 10 isemployed to close the upper or delivery end of the flue C. By liftingeither or both of the said hoods the temperature within the incubatingchamber and the volume of moistened air therein may be varied.

The heater A having the orifice E and hood 9, as shown in theaccompanying drawings, is not new at thepresent time. The :rr-ler bar'11 which is connected to the hood 1) by means of the hoop 12, and whichis balanced by means of the weight 13 on the rocker 14, is likewise old.The bar 11 and rocker 14 s'upportthe damper rod 15 which is engaged bythe damper arm 16 and the nut 17 mounted thereon. WVhe'n the heater isactuated to move the damper arm 16 the rod 15 is drawn upon .tjolliftthe end of the teeter bar 11 and the hood 9 connected therewith. In thepresent invention'the teeter bar 11 is flexibly connected with theteeter bar 18, a hook 19 being employed for this purpose. A secondrocker 20 is provided, upon which is supported the bar 18 and the hood10, the same being balanced on the knife edge extensions 21 of the saidrocker by a counterbalancing weight 22. The weight 22 is similar to theweight 13, each weight being held in adjustment by means of set screws23.

As seen best in Fig. 2 of the drawings the rocker 20 is provided with atailpiece 24,.

which tail piece 24 is provided with a series of perforations 25 throughwhich the shank extension 26 of the hook 19 is protruded:

As seen best in Fig. 3 of the drawings the shank extension 26 isprovided with a screw thread to be engaged by the follower nut 27. Therocker 14 is provided with the knife edge extensions 28, and with arecess 29 over which a loop 30 of the damper rod 15 extends. The knifeedge'extensions 21 and 28 of the rockers 20 and 14 respectively areseated in a U-shaped casting 31. the arms whereof are shaped to formsuitable recessesfor freely supporting the said extensions 21 and 28.The casting 31 is provided with bolting flanges 32 through which areextended bolts 33 to hold the clamping plate 34 upon the hollow standard35. The standard 35 is held by abracket 36 permanently secured to thebody of the-incubating chamber B or other convenient standing structure!As seen best in Fig. 3 of the drawings, the teeter bar 11 is providedwith an upturned loop 37 within which the hook 19 is seated. The teeterbar 18 is provided at the forward end with a hook 38 for engaging thehood 10 to lift the same. Both bars 11 and 18 are extended throughperforations formed in the lower end of short bolts 39, which bolts areslidably mounted in the rockers 14 and 2d, and are provided with thescrew ends for enga ement of the nuts 40. The perforation 1n the bolts39 is engaged to permit the bars 11 and 18 to move freely when rockers14: and 20. By means of this construction it will be seen that the bars11 and .18 may be freely adjusted in relation each to the other and eachto the rocker upon which it is mounted.

In operation the bars 11 and 18 are each adjusted to the location of thehoods 9 and 10. The balance of the said bars when carrying the saidhoods is established by moving the weights 13 and 22. The adjustmentbetween the bars 11 and 18 is primarily established by moving the hook19 and shank extension 26 thereof to extend the said shank extensionthrough the one or other of the perforations 25. It will be seen that asthe bar 18 takes its movement from the bar 11, and at the point thereonfixed by the loop 37, the extent of the movement of the free end of thebar 18 will be varied as the hook 19 be shifted to extend through theperforation 25 nearest the pivotal bearing of the extensions 21 ortheperforation removed therefrom. A; slight variation of the point of pullin a lever of this character augments the extent of the movement of thefree end of the said lever. The advantages of this construction areobvious, as by this means a slight, and to all intents, an unappreciablemovement of the bar 11 is translated to a considerable and quiteappreciable movement of the bar 18 and the resultant lifting of the hood10 and opening of the flue C.

In certain climates and at certain altitudes it becomes necessary, forthe proper incubation of chickens, that the moisture laden air should.he removed in equal or increased proportion to the increase of the heat.In other climates it is wise to reverse the above stated ratio and toslow down the damper or hood for emitting the moisture from theincubating chamber. Expo rienee is the only guide for this arrangement,but by shifting the hook 19 within the compass of the perforations 25all of the usual or knownconditions may, by the present construction, bemade. The adjustment of the bars 11 and Band the weights 13 and 22having been established the op eration of the apparatus is in allrespects similar to that of the well knlown heat regulator.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is 1. In a regulator of the character setforth, a plurality of rocking members; a plurality of levers oneadjustably mounted on each of said members; a bolt for fixedly securingthe said levers on said members; a counter-balancing weight adjustablymounted on said levers; a bracket having seats for said membersprogressively arranged and superposed; a member operatively connect--ing said levers and adjustable to vary the swing thereof; andheat-controlled operat ing mechanism to rock said members.

In a regulator of the character set forth, a plurality of rockingmembers; a plurality of levers one adjustably mounted on each of saidmembers; a bolt for fixedly securing the said levers on said members; acounterbalancing weight adjustably' mounted on said levers; a brackethaving seats for said members progressively arranged and superposed; amember operatively connecting said levers and adjustable to vary theswing thereof; means for varying and the ing the angular disposition ofsaid levers; and heat-controlled operating mechanism to rock saidmembers.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE HOWARD LEE.

\Vitnesses HARRY Rou'LnY, V. M. Coorrn.

